The Stabila Type 81 S 100cm Bevelled Shaped Spirit Level is a striking level with trapezoidal profile shape. Especially suitable for craftsmen who subject their tools to extremely demanding conditions for example, in bricklaying. The STABILA installation technology ensures long-term accuracy measuring accuracy in normal position is 0.5 mmm and 0.75 mmm in reverse position. This bevelled shaped level has a die-cast aluminium body which makes it one of the sturdiest levels that STABILA makes. The vials are precisely aligned with the milled measuring surface then locked together ensuring maximum accuracy. This gives the 81 S an exceptionally long working life on building sites.